Attachment for therapeutic back rests



Oct. 12, 1926. 1,602,877

T. BRIXNER ATTACHMENT FOR THERAPEUTIC BACK RESTS Filed 001'. 8, 1925 I .l l I I I I I I a I I I i I I I I I I 1 I I I I I I I I I l I I FL: -3. J INVENTOR. 7555/5 BklX/VEE ATTORNEY.

Patented Oct. 12, 1926.

1,602,877 UNITED STATES PATENT o-FFicE. V

as tarmac, of NEW max. at. r. ATTACHMENT 10a THERAPEUTIC BACK aasrs. I

ummeled October a, 1925. Serial No. 61,234.

My invention relates to improvements in attachments for therapeutic back rests, which are'used in the sick bed :to offer a straight support for the hack of the patient at any angle desiredyand the objects (of my improvement are,

let. To provide an arm or head rest for the patient which can be easily removed;

2nd. To have facilities on such an attachment to use it in connection with the various types of back rests which are used today; one type of such back rest consisting of a straight board, other types consisting of an iron or pipe frame with wire netting or a piece of canvas stretched across it:

3rd. To provide an arm rest or table on the side of the back rest which can be arranged at a level parallel to the floor at any angle of inclination of the back rest.

- I obtained these objects by the mechanism illustrated in the accompanying drawings, in which- Fig. 1 is a side View of my attachment.

Fig. 2 is a top view of my attachment.

Fig. 3 shows an angular view of the back rest with my attachment fastened to it in two positions.

Fig. 4 is a sectional view of the lock in the clamp.

Similar numerals refer to similar parts throughout the several views.

The plate or board 5 has hinges 6 and 7 on one of its sides with a pivot 8. Lug 9 which is rotatably mounted on that pivot 8 is part of a C clamp on which 10 is the clamping flange. There is a V shaped recess 11 in that flange facing the end 22 of the screw part of the clamp. That-screw part is shaped in a manner familiar to those acquainted with the art of tools. The end 22 has a recess 19 is universally joined. At the end of the screw is a handle 20 and it fits into a threaded bore in lug 18 on the C clamp. Lug 18 is shown sectioned in Fig. 4. This section shows next to the hole which is tapped for screw 19, a hole 17 in which slides the in 14. That pin has a sliding fit in the hole and works against compression spring 16. There is a slot in the top of the lug in the direction of the hole 17 in which slides the pin 15 which is studded into the-pin 14. The pin 15 is the stop for the pin 14 in its motion out of the hole and at the same time offers a gri for operating the pin 14 back and forth. in the hole 16. Pin 1.4 engages into which the spherical tip 21 of the screw 7 into the holes 13 which are arranged in a circle around pivot 8 in the loop l2-which I have various ways in which to suitably mount my attachment to the back rest. 29 shows the attachmentmounted on the side of the board 23 where it serves as an arm rest or as a table; 30 shows my attachment mounted on board 23 on the top where it serves as a head rest. Whereas for the latter purpose I usually have the clamp and the plate 5 in one plane, I desire toshift the planes in relation to each other when I use my attachment as an arm rest, and when the back rest is set at an incline as shown in Fig. 3, I lock the pin 14 in the hole 13 most suitably located so that the plate 5 is parallel with the level of the bed.

When using a back rest of the type shown in Fig. 3, the attachment is clamped against the flange 10. If I use a back rest with an iron or pipe frame, I clamp the attachment to that iron or pipe frame, the pipe or iron being gripped between the sides of the V clamp 11 and end 22 on the screw.

The attachment as shown in my illustration is made in metal. For the comfort of the patient the plate is padded with pillows when in use or a suitable padding of this kind may form part of my plate. Of course other materials, like wood, may be used for plate 5.

I have chosen the method shown in my drawings, with a pin 14 looking into a sector with holes 13, as the most suitable way of setting the plate at a certain angle in rela tion to the clamp. Of course this is not the only way in which the setting may be brought about nor do I want to limit myself to this particular way of doing it. A flange with radial corrugations, forming part of the clamp and a similar flange on the plate, both located concentrically to the pivot 8, the corrugations of both flanges matching each other, may serve to lock the two parts at any angle desired, a suitable screw pressing the respective corrugations into each other. I

For certain purposes, when the attachment is always used at a fixed angle, the angular adjustment may not be required and the plate and clamp may be solidly joined, or form one piece.

I am aware that prior to my invention there have been attachments on back rests which serve as a headrest, but these Were not made detachable nor Were there arm rests which also can be used for a table used in connection with back rests. By making my attachment detachable, it is more suitable because of hygienic reasons. Furthermore, the arm rest or the head rest may not be Wanted by the patient at all times. On 15 

